package com.itheima.reggie.common;


import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理
 */
//@ControllerAdvice(annotations = {RestController.class}) //两种注解都可以
@RestControllerAdvice
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 异常处理方法
     * @param ex
     * @return
     */
     @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
         log.error(ex.getMessage());

         if(ex.getMessage().contains("Duplicate entry")){
             String[] split = ex.getMessage().split(" ");
             String msg = split[2] + "已存在";
             return R.error(msg);
         }
         return R.error("未知错误");
     }

    /**
     * 异常处理方法
     * @param ex
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());

        return R.error(ex.getMessage());
    }
}
